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Reaction Dynamics
Hybrid rocket propulsion for responsive small satellite launches
About Reaction Dynamics
Reaction Dynamics is a Canadian aerospace company, founded in 2017 by Bachar Elzein, that is developing launch vehicles and propulsion systems. The company is headquartered in Longueuil, Quebec, within the region's Aerospace Innovation Zone. Elzein, who serves as CEO and CTO, founded the company while working as a research assistant at Polytechnique Montréal, where he focused on hybrid rocket propellants.
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The company's core technology is a patented hybrid rocket engine that addresses a long-standing challenge in propulsion by stabilizing the oxidizer-to-fuel ratio during combustion. This system combines a non-toxic, storable solid fuel with a liquid oxidizer, which simplifies the engine architecture to about a dozen parts compared to thousands in traditional liquid-fueled engines. This design is intended to increase safety, reduce operational complexity, and lower launch costs. The firm's rockets are designed for rapid deployment from mobile launch infrastructure, providing operational flexibility for both commercial and defense clients.
Reaction Dynamics' primary launch vehicle is the Aurora. This two-stage rocket is designed to carry payloads of up to 200kg into Low Earth Orbit (LEO) and aims to provide an on-demand, cost-effective launch solution for small satellite operators. The company also develops in-space propulsion solutions, including a Micro Orbital Transfer Vehicle (OTV) for smallsat mobility. Its business model focuses on offering dedicated launch services at a price point competitive with rideshare options, giving clients control over launch timing and trajectory.
The company has secured significant funding, including a CAD $14 million Series A round in June 2025, bringing its total funding to CAD $38 million from a mix of private investment and public support. It has also won a million-dollar investment from Tim Draper's venture capital firm. Reaction Dynamics has established key partnerships, including a pathfinder launch agreement with Maritime Launch Services to conduct an orbital launch from Spaceport Nova Scotia, and a commercial multi-launch services agreement with Galaxia. A maiden suborbital flight is scheduled for 2026, with the first orbital launch planned for 2028.
At a glance
- Status
- Operational
- Founded
- 2016
- Headquarters
- Montreal, Canada
- Employees
- 60
- Open positions
- 1
- Dealroom signal
- 90.1/100
- Industry
- Space
- Sector
- Space, Space Travel, Spacecraft Propulsion, Space Transportation, Propulsion Systems, Space Upstream, NIF defense security and resilience, NIF freedom of operations and mobility, DT and LS, science-based
- Technology
- Hardware, Deep Tech
- Business model
- Manufacturing
- Client focus
- b2b
Latest news
Press, funding announcements and product moves mentioning Reaction Dynamics.
Funding history
Company financing events and reported valuations.
| Deal type | Date | Amount | Valuation | Investors | Source |
|---|---|---|---|---|---|
| GRANTOther financing | Jun 2026 | $8.3M | — | Canadian Department of National Defence | ↗ |
| SUPPORT PROGRAMOther financing | Sep 2025 | $330K | — | Defence Innovation Accelerator for the North Atlantic (DIANA) | ↗ |
Growth signals
Latest recorded traffic for Reaction Dynamics is 4.2K monthly website visits, down 61.8% over the last three months. Reaction Dynamics's team grew 42.9% over the past year.
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Investors
From Dealroom's funding and investor records, grouped by the round each investor first entered.
Seed3 investors entered at this stage
Creative Destruction Lab
Government of Quebec
Canadian Department of National Defence
Other known investors4 additional known investors
Defence Innovation Accelerator for the North Atlantic (DIANA)
Front Row Ventures
Nick Jarjour
Propolys
Source: Dealroom Talent Intelligence.
Global footprint
team presence
Market sentiment
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